公开(公告)号：US20160211751A1

公开(公告)日：2016-07-21

申请号：US15000683

申请日：2016-01-19

Applicant: Seiko Instruments Inc.

Inventor： Tadashi KUROZO ,  Takao NAKASHIMO ,  Michiyasu DEGUCHI

IPC: H02M3/158 ,  H02M1/32

CPC classification number: G05F1/569 ,  G05F1/573

Abstract: Provided is a voltage regulator having a simple circuit configuration in which a protection circuit is not erroneously operated, and delay time of activation of the protection circuit is short. The voltage regulator includes: a protection circuit configured to control an output transistor when an abnormality of the voltage regulator is detected; a first constant current circuit configured to supply operating current to the protection circuit; and a detection circuit configured to detect output current flowing through the output transistor, to thereby control the first constant current circuit. The detection circuit is further configured to detect the output current with a predetermined reference current value. The protection circuit is further configured to control the output transistor so that the output current does not fall below the reference current value.

Abstract translation: 提供一种电压调节器，其具有简单的电路结构，其中保护电路不被错误地操作，并且保护电路的启动的延迟时间短。 电压调节器包括：保护电路，被配置为当检测到电压调节器的异常时控制输出晶体管; 配置为向保护电路提供工作电流的第一恒流电路; 以及检测电路，被配置为检测流过所述输出晶体管的输出电流，从而控制所述第一恒流电路。 检测电路还被配置为以预定的参考电流值检测输出电流。 保护电路还被配置为控制输出晶体管，使得输出电流不低于参考电流值。

公开(公告)号：US20150248135A1

公开(公告)日：2015-09-03

申请号：US14634545

申请日：2015-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yun Hui Han ,  Chul Woo Park ,  Ki Sun Lee

IPC: G05F1/46

CPC classification number: G05F1/462 ,  G05F1/463 ,  G05F1/567 ,  G05F1/569 ,  H02M1/32 ,  H02M2001/327 ,  Y10T307/406

Abstract: A method of controlling current includes receiving a current value detected by at least one regulator supplying a unit-specific voltage to each unit of an electronic device. The method also includes controlling a current flowing through the each unit on the basis of the current value.

Abstract translation: 控制电流的方法包括接收由至少一个调节器检测到的电流值，该调节器向电子设备的每个单元提供单位特定电压。 该方法还包括基于当前值控制流过每个单元的电流。

公开(公告)号：US20150194886A1

公开(公告)日：2015-07-09

申请号：US14150725

申请日：2014-01-08

Applicant: Pedro Barbosa Zanetta ,  Kumar Abhishek ,  Sunny Gupta ,  Nitin Pant

Inventor： Pedro Barbosa Zanetta ,  Kumar Abhishek ,  Sunny Gupta ,  Nitin Pant

IPC: H02M3/158 ,  H03K3/012

CPC classification number: H02M3/158 ,  G05F1/565 ,  G05F1/569 ,  G05F1/571 ,  G05F1/573 ,  G06F1/26 ,  H02M2001/0032 ,  H03K19/0013

Abstract: An integrated circuit (IC) with voltage regulation includes high power and low power domains, low and high voltage regulators and a low power regulator. The low voltage regulator powers the high and low power domains when the IC is in a HIGH power mode. The low power regulator receives a voltage from a high voltage regulator and powers the low power domain when the IC is in a LOW power mode. The IC includes a switching module that disconnects the low voltage regulator from the low power domain when the output voltage of the high voltage regulator is lower than a threshold voltage during power-up and connects the low voltage regulator to the low power domain when the voltage regulated by the high voltage regulator exceeds the threshold voltage.

Abstract translation: 具有电压调节的集成电路（IC）包括大功率和低功率域，低压和高压调节器以及低功率调节器。 当IC处于高功率模式时，低压稳压器为高电源和低电源供电。 当IC处于低功耗模式时，低功率稳压器从高电压调节器接收电压并为低功率域供电。 该IC包括一个切换模块，当高电压调节器的输出电压低于上电期间的阈值电压时，将低压调节器与低功率域断开连接，并将低电压调节器连接到低功率域，当电压 由高压调节器调节器超过阈值电压。

公开(公告)号：US09000743B2

公开(公告)日：2015-04-07

申请号：US13645419

申请日：2012-10-04

Applicant: Analog Vision Technology Inc.

Inventor： Ming-Chiang Ting

IPC: G05F1/56 ,  G05F1/565 ,  G05F1/577 ,  G05F1/569 ,  G05F1/575

CPC classification number: G05F1/56 ,  G05F1/565 ,  G05F1/569 ,  G05F1/575 ,  G05F1/577

Abstract: A multi-channel constant voltage and constant current converting controller is provided. It comprises a multi-channel balance circuit and an error amplifier circuit. The multi-channel balance circuit receives a first voltage signal and load current detecting signals and outputs a second voltage signal and amplifying load current detecting signals. The error amplifier circuit receives the second voltage signal, the amplifying load current detecting signals and a reference voltage and outputs an error amplifying signal. The error amplifier circuit outs the error amplifying signal according to the reference voltage and the maximum value between the second voltage signal and amplifying load current detecting signals.

Abstract translation: 提供多通道恒压和恒流转换控制器。 它包括多通道平衡电路和误差放大器电路。 多通道平衡电路接收第一电压信号和负载电流检测信号，并输出第二电压信号并放大负载电流检测信号。 误差放大器电路接收第二电压信号，放大负载电流检测信号和参考电压，并输出误差放大信号。 误差放大器根据参考电压和第二电压信号与放大负载电流检测信号之间的最大值输出误差放大信号。

公开(公告)号：US20130328532A1

公开(公告)日：2013-12-12

申请号：US13645419

申请日：2012-10-04

Applicant: ANALOG VISION TECHNOLOGY INC.

Inventor： MING-CHIANG TING

IPC: G05F1/10

CPC classification number: G05F1/56 ,  G05F1/565 ,  G05F1/569 ,  G05F1/575 ,  G05F1/577

Abstract: A multi-channel constant voltage and constant current converting controller is provided. It comprises a multi-channel balance circuit and an error amplifier circuit. The multi-channel balance circuit receives a first voltage signal and load current detecting signals and outputs a second voltage signal and amplifying load current detecting signals. The error amplifier circuit receives the second voltage signal, the amplifying load current detecting signals and a reference voltage and outputs an error amplifying signal. The error amplifier circuit outs the error amplifying signal according to the reference voltage and the maximum value between the second voltage signal and amplifying load current detecting signals.

Abstract translation: 提供多通道恒压和恒流转换控制器。 它包括多通道平衡电路和误差放大器电路。 多通道平衡电路接收第一电压信号和负载电流检测信号，并输出第二电压信号并放大负载电流检测信号。 误差放大器电路接收第二电压信号，放大负载电流检测信号和参考电压，并输出误差放大信号。 误差放大器根据参考电压和第二电压信号与放大负载电流检测信号之间的最大值输出误差放大信号。

公开(公告)号：US08564264B2

公开(公告)日：2013-10-22

申请号：US13120395

申请日：2009-06-23

Applicant: Jalal Hallak

Inventor： Jalal Hallak

IPC: G05F1/00

CPC classification number: G05F1/569 ,  Y10T307/406

Abstract: A current control system comprising at least one series arm including a linear series regulator for generating a manipulated variable signal, wherein the linear series regulator is connected to a semiconductor control element which is connected to a supply voltage referenced to a ground potential, and the semiconductor control element includes an output voltage at its output side relative to the ground potential. A reference signal fed to the series regulator, a current measurement signal, and the manipulated variable signal are referenced to the ground potential, where the manipulated variable signal is fed to a subtractor which subtracts the difference of the feed voltage minus the output voltage from the manipulated variable signal, and the generated output signal of the subtractor is fed to the semiconductor control element as a corrected manipulated variable signal.

Abstract translation: 一种电流控制系统，包括至少一个串联臂，其包括用于产生操纵可变信号的线性串联调节器，其中所述线性串联调节器连接到连接到参考地电位的电源电压的半导体控制元件，并且所述半导体 控制元件在其输出侧包括相对于地电位的输出电压。 馈送到串联调节器的参考信号，电流测量信号和操作变量信号参考地电位，其中操作的可变信号被馈送到减法器，减法器减去馈送电压的差值， 操作变量信号，并且减法器的生成输出信号作为校正操作变量信号馈送到半导体控制元件。

公开(公告)号：US08451571B2

公开(公告)日：2013-05-28

申请号：US12790070

申请日：2010-05-28

Applicant: Takashi Imura ,  Takao Nakashimo ,  Masakazu Sugiura ,  Atsushi Igarashi ,  Masahiro Mitani

Inventor： Takashi Imura ,  Takao Nakashimo ,  Masakazu Sugiura ,  Atsushi Igarashi ,  Masahiro Mitani

IPC: H02H3/00

CPC classification number: G05F1/569

Abstract: Provided is a power supply integrated circuit including an overheat protection circuit with high detection accuracy. The overheat protection circuit includes: a current generation circuit including: a first metal oxide semiconductor (MOS) transistor including a gate terminal and a drain terminal that are connected to each other, the first MOS transistor operating in a weak inversion region; a second MOS transistor including a gate terminal connected to the gate terminal of the first MOS transistor, the second MOS transistor having the same conductivity type as the first MOS transistor and operating in a weak inversion region; and a first resistive element connected to a source terminal of the second MOS transistor; and a comparator for comparing a reference voltage having positive temperature characteristics and a temperature voltage having negative temperature characteristics, which are obtained based on a current generated by the current generation circuit.

Abstract translation: 提供了一种具有高检测精度的过热保护电路的电源集成电路。 过热保护电路包括：电流产生电路，包括：第一金属氧化物半导体（MOS）晶体管，其包括彼此连接的栅极端子和漏极端子，所述第一MOS晶体管在弱反转区域中工作; 第二MOS晶体管，包括连接到第一MOS晶体管的栅极端子的栅极端子，第二MOS晶体管具有与第一MOS晶体管相同的导电类型并且在弱反转区域中操作; 以及连接到所述第二MOS晶体管的源极端子的第一电阻元件; 以及比较器，用于比较具有正温度特性的参考电压和具有负温度特性的温度电压，其基于由电流产生电路产生的电流获得。

公开(公告)号：US20130076324A1

公开(公告)日：2013-03-28

申请号：US13699844

申请日：2011-06-16

Applicant: Shigeyuki Fujii

Inventor： Shigeyuki Fujii

IPC: G05F1/59 ,  G05F1/569

CPC classification number: G05F1/59 ,  B60R16/03 ,  G05F1/569 ,  H02J1/08 ,  H02J7/0065

Abstract: Provided are: a power supply control circuit having a configuration in which an N-channel FET and a P-channel FET can appropriately and selectively be used so as to control power feeding with high efficiency and at low cost; and a power supply control device including the power supply control circuit. An N-channel FET (NchFET in the drawings) and a P-channel FET (PchFET in the drawings) are connected in parallel with each other between the positive voltage side (+B) of a battery (direct current power supply) and a plurality of ECUs (loads) 4, 4, . . . , so as to appropriately control ON and OFF.

Abstract translation: 提供了一种电源控制电路，其具有能够适当且选择性地使用N沟道FET和P沟道FET的结构，以便以高效率和低成本地控制供电; 以及包括电源控制电路的电源控制装置。 附图中的N沟道FET（附图中的NchFET）和P沟道FET（PchFET）在电池（直流电源）的正电压侧（+ B）和 多个ECU（负载）4，4，。 。 。 ，以便适当地控制ON和OFF。

公开(公告)号：US20090309560A1

公开(公告)日：2009-12-17

申请号：US12138464

申请日：2008-06-13

Applicant: David A. Fox

Inventor： David A. Fox

IPC: G05F1/573

CPC classification number: G05F1/569

Abstract: A direct current (DC) remote power controller for remotely controlling DC power between a DC power source and a DC load, comprises: a current sensor for sensing the level of current that the power source supplies to the load and generating a current feedback signal representative of the sensed current level; a current limit controller that compares the current feedback signal to a reference current level and generates a current regulation signal representative of the value of sensed current level above the reference current level; a current limiting device that is responsive to the current regulation signal to limit load current to the reference current level up to a first predetermined level of potential difference across the current limiting device; a load resistance; and a switched-mode DC-to-DC converter in parallel with the current limiting device that senses potential difference across the current limiting device and diverts a portion of the load current from the current limiting device through the load resistance above the first predetermined level of potential difference to reduce power dissipation of the current limiting device and maintain the load current at the reference current level.

Abstract translation: 用于远程控制直流电源和直流负载之间的直流电力的直流（DC）远程电源控制器包括：电流传感器，用于感测电源提供给负载的电流电平，并产生电流反馈信号代表 的感测电流水平; 电流限制控制器，其将所述电流反馈信号与参考电流电平进行比较，并产生代表所述参考电流电平以上的感测电流电平的值的电流调节信号; 电流限制装置，其响应于电流调节信号，以将负载电流限制到参考电流电平，直到电流限制装置的电位差达到第一预定水平; 负载电阻; 以及与所述限流装置并联的开关模式DC-DC转换器，其感测所述限流装置两端的电位差，并且将来自所述限流装置的所述负载电流的一部分通过所述负载电阻高于所述限流装置的第一预定电平 电位差以减小限流装置的功耗并将负载电流维持在参考电流电平。

公开(公告)号：US07557556B2

公开(公告)日：2009-07-07

申请号：US11935022

申请日：2007-11-05

Applicant: Takao Nakashimo

Inventor： Takao Nakashimo

IPC: G05F5/00

CPC classification number: G05F1/569

Abstract: Provided is a voltage control circuit which suppresses a calorific value that generates when short-circuit fault occurs even if a voltage value of an input voltage is large. At the time of short-circuit fault, an additional control voltage Va whose voltage value becomes larger when the voltage value of the input voltage Vin is larger is input to the voltage control p-channel MOS transistor (110) from a transistor control MOS transistor (160), to thereby increase resistance of the voltage control p-channel MOS transistor (110) to suppress a short-circuit current. As a result, when the input voltage Vin is larger, the current value of a holding current or a calorific value after the short-circuit protecting operation has been conducted can be suppressed.

Abstract translation: 提供一种电压控制电路，其抑制即使输入电压的电压值大时发生短路故障时产生的发热量。 在短路故障时，当输入电压Vin的电压值较大时，其电压值变大的附加控制电压Va从晶体管控制MOS晶体管输入到电压控制p沟道MOS晶体管（110） （160），从而增加电压控制p沟道MOS晶体管（110）的电阻以抑制短路电流。 结果，当输入电压Vin较大时，可以抑制进行短路保护动作之后的保持电流或发热量的电流值。